into a supermarket without a clear list, you might picking up what you wouldn’t necessarily want

Good manners usually help people to ________ each other.

ount of fuel supplies being finite and manypeople being wasteful, we will have to install ________ solar heating device inour home.

“What place is it？” “Haven’t you found out we _____ back where we ______？”

Would you like to watch China’s Got Talent(中国达人秀)—________ But I’m busy revising for my test．